Sara is preparing for her birthday party. She rubs three balloons with her wool scarf, then hangs them from the gate with string, as shown in the figure. The balloons repel, and she notices that fromdirectly below, each balloon is at a vertex of a horizontal, equilateral triangle with sides equal to S = 32.7 cm. Each balloon has equal mass of m= 1.84 g and carries equal charge. You can modeleach balloon as a particle, with its center L = 49.5 cm from the point of support. What is the charge (in µC) on one balloon?0.395(i)

Answered: Image /qna-images/answer/7bfc5b4b-c96a-4d2a-a0ad-f73632d06cd1.jpg

Answered: Sara is preparing for her birthday…

Similar questions

An infinite wire (R = 0.05 c m) is charged to λ = 2.5 μ C / c m. An electron is knocked out of the wire. Right at the edge, the electron flies outward at 6 × 10 7 m / s. How far does it travel before it stops and returns?
An alpha particle (ααalpha), which is the same as a helium-4 nucleus, is momentarily at rest in a region of space occupied by an electric field. The particle then begins to move. Find the speed of the alpha particle after it has moved through a potential difference of −3.45×10−3 V . The charge and the mass of an alpha particle are q_a = 3.20×10−19 C and m_a = 6.68×10−27 kg , respectively. a)What is the value of the change in potential energy, ΔU=U_f−U_i, of the alpha particle? b)What is the final velocity of the alpha particle, (vf)αv_af? c)If you had carried out the algebra using variables before plugging numbers into your expressions, you would have found that (vf)α=−2qαΔVmα−−−−−−√ where ΔV is measured in volts. To verify that this expression for (vf)α has the correct units of velocity, you need to perform some unit analysis. Begin by finding the equivalent of a volt in terms of basic SI units. What is a volt in terms of meters (m), seconds (s), kilograms (kg), and coulombs (C)?…
Two hard rubber spheres, each of mass m = 14.9 g, are rubbed with fur on a dry day and are then suspended with two insulating strings of length L = 5.25 cm whose support points are a distance d = 3.06 cm from each other as shown in the figure below. During the rubbing process, one sphere receives exactly twice the charge of the other. They are observed to hang at equilibrium, each at an angle of 0 = 10.4° with the vertical. Find the amount of charge on each sphere. (Enter your answers from smallest to largest.)
Two identical balloons are inflated and charged in the same manner. They are tied by threads and hung from the same pivot point on the ceiling. The balloons hang down, with the threads making an angle of 14° with each other and the balloons being separated by a distance of 58 cm (center-to-center). Each balloon has a charge of - 3.5x10-7 C. Draw a free-body diagram for the balloons and consider them to act as point objects.
A small metal sphere, carrying a net charge of qt= +7.5 mC, is held in a stationary position by insulating supports. A second small metal sphere, with net charge of 2' +3 mC and mass 2 g is projected toward q . When two spheres are 0.8 m apart, sa is moving toward qt with speed 22.0 mls, see Figure. Assume that the two spheres can be treated as point charges. Neglect the force of gravity. a) What is the speed ofqt when the spheres are 0.5 m apart† How close can q2 approach to q1 ?
An alpha particle with kinetic energy 11.0 MeV makes a head-on- collision with a lead nucleus at rest. What is the distance of closest approach of the two particles? (Assume that the lead nucleus remains stationary and that it may be treated as a point charge. The atomic number of lead is 82. The alpha particle is a helium nucleus, with atomic number 2.)
Two hard rubber spheres, each of mass m = 14.9 g, are rubbed with fur on a dry day and are then suspended with two insulating strings of length L = 5.25 cm whose support points are a distance d = 3.06 cm from each other as shown in the figure below. During the rubbing process, one sphere receives exactly twice the charge of the other. They are observed to hang at equilibrium, each at an angle of 0 = 10.4° with the vertical. Find the amount of charge on each sphere. (Enter your answers from smallest to largest.) с C Need Help? Submit Answer m Read It L 18 m
A student is trying to build a home-made capacitor. He uses two 1.0 cm x 1.0 cm aluminum foil as the two parallel conducting plates, spaced 0.40 cm apart. He then connects the two foils with a 3.0 V battery. How many electrons are stored in the negative plate?
k3 8.99 x 10° Nm?/C?, me 3D 9.11 x 10-31 kg, e %3D 1.6 х 10-19 С, тр 3D 1.67 х 10-27 kg 1. Electrons start from rest and are accelerated east by two plates (parallel to the north/south directions) through a potential difference. They then pass into a second set of parallel plates 1.2 cm long (parallel to the east/west direction). When the electrons leave the second set of plates they are moving at 3.0 x 106 m/s [E 30º N]. You may ignore gravity. (For this question but not in the real world!) Find the potential difference across the first set of plates and the electric field between the second set of plates. 1.2 cm Path of electron First set of plates Second set of plates
Identical 42 μC charges are fixed on an x axis at x = ±3.4 m. A particle of charge q = –20 μC is then released from rest at a point on the positive part of the y axis. Due to the symmetry of the situation, the particle moves along the y axis and has kinetic energy 1.2 J as it passes through the point x = 0, y = 4.5 m. (a) What is the kinetic energy of the particle as it passes through the origin? (b) At what negative value of y will the particle momentarily stop?
The image shows three charges fixed in place. The distance in the image is ? = 0.2 m and the charge is ? = 4×10−16 C An electron (not pictured) initially at point A has a speed of 106 m/s as it moves toward point B. What is the speed of the electron at point B?
A research Van de Graaff generator has a 1.90 m diameter metal sphere with a charge of 56.0 µC on it. An oxygen atom with three missing electrons is released near the Van de Graaff generator. What is its kinetic energy in keV at this distance?

SEE MORE QUESTIONS